1015 lines
30 KiB
C
1015 lines
30 KiB
C
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/*
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* ISP1362 HCD (Host Controller Driver) for USB.
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*
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* COPYRIGHT (C) by L. Wassmann <LW@KARO-electronics.de>
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*/
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/* ------------------------------------------------------------------------- */
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/*
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* Platform specific compile time options
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*/
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#if defined(CONFIG_BLACKFIN)
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#include <linux/io.h>
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#define USE_32BIT 0
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#define MAX_ROOT_PORTS 2
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#define USE_PLATFORM_DELAY 0
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#define USE_NDELAY 1
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#define DUMMY_DELAY_ACCESS \
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do { \
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bfin_read16(ASYNC_BANK0_BASE); \
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bfin_read16(ASYNC_BANK0_BASE); \
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bfin_read16(ASYNC_BANK0_BASE); \
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} while (0)
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#undef insw
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#undef outsw
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#define insw delayed_insw
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#define outsw delayed_outsw
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static inline void delayed_outsw(unsigned int addr, void *buf, int len)
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{
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unsigned short *bp = (unsigned short *)buf;
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while (len--) {
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DUMMY_DELAY_ACCESS;
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outw(*bp++, addr);
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}
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}
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static inline void delayed_insw(unsigned int addr, void *buf, int len)
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{
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unsigned short *bp = (unsigned short *)buf;
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while (len--) {
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DUMMY_DELAY_ACCESS;
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*bp++ = inw(addr);
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}
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}
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#else
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#define MAX_ROOT_PORTS 2
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#define USE_32BIT 0
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/* These options are mutually eclusive */
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#define USE_PLATFORM_DELAY 0
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#define USE_NDELAY 0
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#define DUMMY_DELAY_ACCESS do {} while (0)
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#endif
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/* ------------------------------------------------------------------------- */
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#define USB_RESET_WIDTH 50
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#define MAX_XFER_SIZE 1023
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/* Buffer sizes */
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#define ISP1362_BUF_SIZE 4096
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#define ISP1362_ISTL_BUFSIZE 512
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#define ISP1362_INTL_BLKSIZE 64
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#define ISP1362_INTL_BUFFERS 16
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#define ISP1362_ATL_BLKSIZE 64
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#define ISP1362_REG_WRITE_OFFSET 0x80
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#define REG_WIDTH_16 0x000
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#define REG_WIDTH_32 0x100
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#define REG_WIDTH_MASK 0x100
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#define REG_NO_MASK 0x0ff
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#ifdef ISP1362_DEBUG
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typedef const unsigned int isp1362_reg_t;
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#define REG_ACCESS_R 0x200
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#define REG_ACCESS_W 0x400
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#define REG_ACCESS_RW 0x600
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#define REG_ACCESS_MASK 0x600
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#define ISP1362_REG_NO(r) ((r) & REG_NO_MASK)
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#define ISP1362_REG(name, addr, width, rw) \
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static isp1362_reg_t ISP1362_REG_##name = ((addr) | (width) | (rw))
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#define REG_ACCESS_TEST(r) BUG_ON(((r) & ISP1362_REG_WRITE_OFFSET) && !((r) & REG_ACCESS_W))
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#define REG_WIDTH_TEST(r, w) BUG_ON(((r) & REG_WIDTH_MASK) != (w))
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#else
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typedef const unsigned char isp1362_reg_t;
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#define ISP1362_REG_NO(r) (r)
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#define ISP1362_REG(name, addr, width, rw) \
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static isp1362_reg_t ISP1362_REG_##name = addr
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#define REG_ACCESS_TEST(r) do {} while (0)
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#define REG_WIDTH_TEST(r, w) do {} while (0)
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#endif
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/* OHCI compatible registers */
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/*
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* Note: Some of the ISP1362 'OHCI' registers implement only
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* a subset of the bits defined in the OHCI spec.
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*
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* Bitmasks for the individual bits of these registers are defined in "ohci.h"
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*/
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ISP1362_REG(HCREVISION, 0x00, REG_WIDTH_32, REG_ACCESS_R);
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ISP1362_REG(HCCONTROL, 0x01, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCCMDSTAT, 0x02, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCINTSTAT, 0x03, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCINTENB, 0x04, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCINTDIS, 0x05, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCFMINTVL, 0x0d, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCFMREM, 0x0e, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCFMNUM, 0x0f, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCLSTHRESH, 0x11, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCRHDESCA, 0x12, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCRHDESCB, 0x13, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCRHSTATUS, 0x14, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCRHPORT1, 0x15, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCRHPORT2, 0x16, REG_WIDTH_32, REG_ACCESS_RW);
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/* Philips ISP1362 specific registers */
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ISP1362_REG(HCHWCFG, 0x20, REG_WIDTH_16, REG_ACCESS_RW);
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#define HCHWCFG_DISABLE_SUSPEND (1 << 15)
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#define HCHWCFG_GLOBAL_PWRDOWN (1 << 14)
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#define HCHWCFG_PULLDOWN_DS2 (1 << 13)
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#define HCHWCFG_PULLDOWN_DS1 (1 << 12)
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#define HCHWCFG_CLKNOTSTOP (1 << 11)
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#define HCHWCFG_ANALOG_OC (1 << 10)
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#define HCHWCFG_ONEINT (1 << 9)
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#define HCHWCFG_DACK_MODE (1 << 8)
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#define HCHWCFG_ONEDMA (1 << 7)
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#define HCHWCFG_DACK_POL (1 << 6)
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#define HCHWCFG_DREQ_POL (1 << 5)
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#define HCHWCFG_DBWIDTH_MASK (0x03 << 3)
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#define HCHWCFG_DBWIDTH(n) (((n) << 3) & HCHWCFG_DBWIDTH_MASK)
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#define HCHWCFG_INT_POL (1 << 2)
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#define HCHWCFG_INT_TRIGGER (1 << 1)
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#define HCHWCFG_INT_ENABLE (1 << 0)
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ISP1362_REG(HCDMACFG, 0x21, REG_WIDTH_16, REG_ACCESS_RW);
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#define HCDMACFG_CTR_ENABLE (1 << 7)
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#define HCDMACFG_BURST_LEN_MASK (0x03 << 5)
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#define HCDMACFG_BURST_LEN(n) (((n) << 5) & HCDMACFG_BURST_LEN_MASK)
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#define HCDMACFG_BURST_LEN_1 HCDMACFG_BURST_LEN(0)
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#define HCDMACFG_BURST_LEN_4 HCDMACFG_BURST_LEN(1)
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#define HCDMACFG_BURST_LEN_8 HCDMACFG_BURST_LEN(2)
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#define HCDMACFG_DMA_ENABLE (1 << 4)
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#define HCDMACFG_BUF_TYPE_MASK (0x07 << 1)
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#define HCDMACFG_BUF_TYPE(n) (((n) << 1) & HCDMACFG_BUF_TYPE_MASK)
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#define HCDMACFG_BUF_ISTL0 HCDMACFG_BUF_TYPE(0)
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#define HCDMACFG_BUF_ISTL1 HCDMACFG_BUF_TYPE(1)
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#define HCDMACFG_BUF_INTL HCDMACFG_BUF_TYPE(2)
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#define HCDMACFG_BUF_ATL HCDMACFG_BUF_TYPE(3)
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#define HCDMACFG_BUF_DIRECT HCDMACFG_BUF_TYPE(4)
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#define HCDMACFG_DMA_RW_SELECT (1 << 0)
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ISP1362_REG(HCXFERCTR, 0x22, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCuPINT, 0x24, REG_WIDTH_16, REG_ACCESS_RW);
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#define HCuPINT_SOF (1 << 0)
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#define HCuPINT_ISTL0 (1 << 1)
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#define HCuPINT_ISTL1 (1 << 2)
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#define HCuPINT_EOT (1 << 3)
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#define HCuPINT_OPR (1 << 4)
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#define HCuPINT_SUSP (1 << 5)
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#define HCuPINT_CLKRDY (1 << 6)
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#define HCuPINT_INTL (1 << 7)
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#define HCuPINT_ATL (1 << 8)
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#define HCuPINT_OTG (1 << 9)
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ISP1362_REG(HCuPINTENB, 0x25, REG_WIDTH_16, REG_ACCESS_RW);
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/* same bit definitions apply as for HCuPINT */
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ISP1362_REG(HCCHIPID, 0x27, REG_WIDTH_16, REG_ACCESS_R);
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#define HCCHIPID_MASK 0xff00
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#define HCCHIPID_MAGIC 0x3600
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ISP1362_REG(HCSCRATCH, 0x28, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCSWRES, 0x29, REG_WIDTH_16, REG_ACCESS_W);
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#define HCSWRES_MAGIC 0x00f6
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ISP1362_REG(HCBUFSTAT, 0x2c, REG_WIDTH_16, REG_ACCESS_RW);
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#define HCBUFSTAT_ISTL0_FULL (1 << 0)
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#define HCBUFSTAT_ISTL1_FULL (1 << 1)
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#define HCBUFSTAT_INTL_ACTIVE (1 << 2)
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#define HCBUFSTAT_ATL_ACTIVE (1 << 3)
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#define HCBUFSTAT_RESET_HWPP (1 << 4)
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#define HCBUFSTAT_ISTL0_ACTIVE (1 << 5)
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#define HCBUFSTAT_ISTL1_ACTIVE (1 << 6)
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#define HCBUFSTAT_ISTL0_DONE (1 << 8)
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#define HCBUFSTAT_ISTL1_DONE (1 << 9)
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#define HCBUFSTAT_PAIRED_PTDPP (1 << 10)
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ISP1362_REG(HCDIRADDR, 0x32, REG_WIDTH_32, REG_ACCESS_RW);
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#define HCDIRADDR_ADDR_MASK 0x0000ffff
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#define HCDIRADDR_ADDR(n) (((n) << 0) & HCDIRADDR_ADDR_MASK)
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#define HCDIRADDR_COUNT_MASK 0xffff0000
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#define HCDIRADDR_COUNT(n) (((n) << 16) & HCDIRADDR_COUNT_MASK)
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ISP1362_REG(HCDIRDATA, 0x45, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCISTLBUFSZ, 0x30, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCISTL0PORT, 0x40, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCISTL1PORT, 0x42, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCISTLRATE, 0x47, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCINTLBUFSZ, 0x33, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCINTLPORT, 0x43, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCINTLBLKSZ, 0x53, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCINTLDONE, 0x17, REG_WIDTH_32, REG_ACCESS_R);
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ISP1362_REG(HCINTLSKIP, 0x18, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCINTLLAST, 0x19, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCINTLCURR, 0x1a, REG_WIDTH_16, REG_ACCESS_R);
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ISP1362_REG(HCATLBUFSZ, 0x34, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCATLPORT, 0x44, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCATLBLKSZ, 0x54, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCATLDONE, 0x1b, REG_WIDTH_32, REG_ACCESS_R);
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ISP1362_REG(HCATLSKIP, 0x1c, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCATLLAST, 0x1d, REG_WIDTH_32, REG_ACCESS_RW);
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ISP1362_REG(HCATLCURR, 0x1e, REG_WIDTH_16, REG_ACCESS_R);
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ISP1362_REG(HCATLDTC, 0x51, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(HCATLDTCTO, 0x52, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(OTGCONTROL, 0x62, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(OTGSTATUS, 0x67, REG_WIDTH_16, REG_ACCESS_R);
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ISP1362_REG(OTGINT, 0x68, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(OTGINTENB, 0x69, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(OTGTIMER, 0x6A, REG_WIDTH_16, REG_ACCESS_RW);
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ISP1362_REG(OTGALTTMR, 0x6C, REG_WIDTH_16, REG_ACCESS_RW);
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/* Philips transfer descriptor, cpu-endian */
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struct ptd {
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u16 count;
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#define PTD_COUNT_MSK (0x3ff << 0)
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#define PTD_TOGGLE_MSK (1 << 10)
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#define PTD_ACTIVE_MSK (1 << 11)
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#define PTD_CC_MSK (0xf << 12)
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u16 mps;
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#define PTD_MPS_MSK (0x3ff << 0)
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#define PTD_SPD_MSK (1 << 10)
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#define PTD_LAST_MSK (1 << 11)
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#define PTD_EP_MSK (0xf << 12)
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u16 len;
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#define PTD_LEN_MSK (0x3ff << 0)
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#define PTD_DIR_MSK (3 << 10)
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#define PTD_DIR_SETUP (0)
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#define PTD_DIR_OUT (1)
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#define PTD_DIR_IN (2)
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u16 faddr;
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#define PTD_FA_MSK (0x7f << 0)
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/* PTD Byte 7: [StartingFrame (if ISO PTD) | StartingFrame[0..4], PollingRate[0..2] (if INT PTD)] */
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#define PTD_SF_ISO_MSK (0xff << 8)
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#define PTD_SF_INT_MSK (0x1f << 8)
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#define PTD_PR_MSK (0x07 << 13)
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} __attribute__ ((packed, aligned(2)));
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||
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#define PTD_HEADER_SIZE sizeof(struct ptd)
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/* ------------------------------------------------------------------------- */
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||
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/* Copied from ohci.h: */
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/*
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* Hardware transfer status codes -- CC from PTD
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*/
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#define PTD_CC_NOERROR 0x00
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#define PTD_CC_CRC 0x01
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#define PTD_CC_BITSTUFFING 0x02
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#define PTD_CC_DATATOGGLEM 0x03
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#define PTD_CC_STALL 0x04
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#define PTD_DEVNOTRESP 0x05
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#define PTD_PIDCHECKFAIL 0x06
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#define PTD_UNEXPECTEDPID 0x07
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#define PTD_DATAOVERRUN 0x08
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#define PTD_DATAUNDERRUN 0x09
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/* 0x0A, 0x0B reserved for hardware */
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||
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#define PTD_BUFFEROVERRUN 0x0C
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#define PTD_BUFFERUNDERRUN 0x0D
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/* 0x0E, 0x0F reserved for HCD */
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||
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#define PTD_NOTACCESSED 0x0F
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/* map OHCI TD status codes (CC) to errno values */
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||
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static const int cc_to_error[16] = {
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||
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/* No Error */ 0,
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||
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/* CRC Error */ -EILSEQ,
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||
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/* Bit Stuff */ -EPROTO,
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||
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/* Data Togg */ -EILSEQ,
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||
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/* Stall */ -EPIPE,
|
||
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/* DevNotResp */ -ETIMEDOUT,
|
||
|
|
/* PIDCheck */ -EPROTO,
|
||
|
|
/* UnExpPID */ -EPROTO,
|
||
|
|
/* DataOver */ -EOVERFLOW,
|
||
|
|
/* DataUnder */ -EREMOTEIO,
|
||
|
|
/* (for hw) */ -EIO,
|
||
|
|
/* (for hw) */ -EIO,
|
||
|
|
/* BufferOver */ -ECOMM,
|
||
|
|
/* BuffUnder */ -ENOSR,
|
||
|
|
/* (for HCD) */ -EALREADY,
|
||
|
|
/* (for HCD) */ -EALREADY
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* HcControl (control) register masks
|
||
|
|
*/
|
||
|
|
#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */
|
||
|
|
#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */
|
||
|
|
#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */
|
||
|
|
|
||
|
|
/* pre-shifted values for HCFS */
|
||
|
|
# define OHCI_USB_RESET (0 << 6)
|
||
|
|
# define OHCI_USB_RESUME (1 << 6)
|
||
|
|
# define OHCI_USB_OPER (2 << 6)
|
||
|
|
# define OHCI_USB_SUSPEND (3 << 6)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* HcCommandStatus (cmdstatus) register masks
|
||
|
|
*/
|
||
|
|
#define OHCI_HCR (1 << 0) /* host controller reset */
|
||
|
|
#define OHCI_SOC (3 << 16) /* scheduling overrun count */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* masks used with interrupt registers:
|
||
|
|
* HcInterruptStatus (intrstatus)
|
||
|
|
* HcInterruptEnable (intrenable)
|
||
|
|
* HcInterruptDisable (intrdisable)
|
||
|
|
*/
|
||
|
|
#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */
|
||
|
|
#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */
|
||
|
|
#define OHCI_INTR_SF (1 << 2) /* start frame */
|
||
|
|
#define OHCI_INTR_RD (1 << 3) /* resume detect */
|
||
|
|
#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */
|
||
|
|
#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */
|
||
|
|
#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */
|
||
|
|
#define OHCI_INTR_OC (1 << 30) /* ownership change */
|
||
|
|
#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */
|
||
|
|
|
||
|
|
/* roothub.portstatus [i] bits */
|
||
|
|
#define RH_PS_CCS 0x00000001 /* current connect status */
|
||
|
|
#define RH_PS_PES 0x00000002 /* port enable status*/
|
||
|
|
#define RH_PS_PSS 0x00000004 /* port suspend status */
|
||
|
|
#define RH_PS_POCI 0x00000008 /* port over current indicator */
|
||
|
|
#define RH_PS_PRS 0x00000010 /* port reset status */
|
||
|
|
#define RH_PS_PPS 0x00000100 /* port power status */
|
||
|
|
#define RH_PS_LSDA 0x00000200 /* low speed device attached */
|
||
|
|
#define RH_PS_CSC 0x00010000 /* connect status change */
|
||
|
|
#define RH_PS_PESC 0x00020000 /* port enable status change */
|
||
|
|
#define RH_PS_PSSC 0x00040000 /* port suspend status change */
|
||
|
|
#define RH_PS_OCIC 0x00080000 /* over current indicator change */
|
||
|
|
#define RH_PS_PRSC 0x00100000 /* port reset status change */
|
||
|
|
|
||
|
|
/* roothub.status bits */
|
||
|
|
#define RH_HS_LPS 0x00000001 /* local power status */
|
||
|
|
#define RH_HS_OCI 0x00000002 /* over current indicator */
|
||
|
|
#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */
|
||
|
|
#define RH_HS_LPSC 0x00010000 /* local power status change */
|
||
|
|
#define RH_HS_OCIC 0x00020000 /* over current indicator change */
|
||
|
|
#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */
|
||
|
|
|
||
|
|
/* roothub.b masks */
|
||
|
|
#define RH_B_DR 0x0000ffff /* device removable flags */
|
||
|
|
#define RH_B_PPCM 0xffff0000 /* port power control mask */
|
||
|
|
|
||
|
|
/* roothub.a masks */
|
||
|
|
#define RH_A_NDP (0xff << 0) /* number of downstream ports */
|
||
|
|
#define RH_A_PSM (1 << 8) /* power switching mode */
|
||
|
|
#define RH_A_NPS (1 << 9) /* no power switching */
|
||
|
|
#define RH_A_DT (1 << 10) /* device type (mbz) */
|
||
|
|
#define RH_A_OCPM (1 << 11) /* over current protection mode */
|
||
|
|
#define RH_A_NOCP (1 << 12) /* no over current protection */
|
||
|
|
#define RH_A_POTPGT (0xff << 24) /* power on to power good time */
|
||
|
|
|
||
|
|
#define FI 0x2edf /* 12000 bits per frame (-1) */
|
||
|
|
#define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7))
|
||
|
|
#define LSTHRESH 0x628 /* lowspeed bit threshold */
|
||
|
|
|
||
|
|
/* ------------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
/* PTD accessor macros. */
|
||
|
|
#define PTD_GET_COUNT(p) (((p)->count & PTD_COUNT_MSK) >> 0)
|
||
|
|
#define PTD_COUNT(v) (((v) << 0) & PTD_COUNT_MSK)
|
||
|
|
#define PTD_GET_TOGGLE(p) (((p)->count & PTD_TOGGLE_MSK) >> 10)
|
||
|
|
#define PTD_TOGGLE(v) (((v) << 10) & PTD_TOGGLE_MSK)
|
||
|
|
#define PTD_GET_ACTIVE(p) (((p)->count & PTD_ACTIVE_MSK) >> 11)
|
||
|
|
#define PTD_ACTIVE(v) (((v) << 11) & PTD_ACTIVE_MSK)
|
||
|
|
#define PTD_GET_CC(p) (((p)->count & PTD_CC_MSK) >> 12)
|
||
|
|
#define PTD_CC(v) (((v) << 12) & PTD_CC_MSK)
|
||
|
|
#define PTD_GET_MPS(p) (((p)->mps & PTD_MPS_MSK) >> 0)
|
||
|
|
#define PTD_MPS(v) (((v) << 0) & PTD_MPS_MSK)
|
||
|
|
#define PTD_GET_SPD(p) (((p)->mps & PTD_SPD_MSK) >> 10)
|
||
|
|
#define PTD_SPD(v) (((v) << 10) & PTD_SPD_MSK)
|
||
|
|
#define PTD_GET_LAST(p) (((p)->mps & PTD_LAST_MSK) >> 11)
|
||
|
|
#define PTD_LAST(v) (((v) << 11) & PTD_LAST_MSK)
|
||
|
|
#define PTD_GET_EP(p) (((p)->mps & PTD_EP_MSK) >> 12)
|
||
|
|
#define PTD_EP(v) (((v) << 12) & PTD_EP_MSK)
|
||
|
|
#define PTD_GET_LEN(p) (((p)->len & PTD_LEN_MSK) >> 0)
|
||
|
|
#define PTD_LEN(v) (((v) << 0) & PTD_LEN_MSK)
|
||
|
|
#define PTD_GET_DIR(p) (((p)->len & PTD_DIR_MSK) >> 10)
|
||
|
|
#define PTD_DIR(v) (((v) << 10) & PTD_DIR_MSK)
|
||
|
|
#define PTD_GET_FA(p) (((p)->faddr & PTD_FA_MSK) >> 0)
|
||
|
|
#define PTD_FA(v) (((v) << 0) & PTD_FA_MSK)
|
||
|
|
#define PTD_GET_SF_INT(p) (((p)->faddr & PTD_SF_INT_MSK) >> 8)
|
||
|
|
#define PTD_SF_INT(v) (((v) << 8) & PTD_SF_INT_MSK)
|
||
|
|
#define PTD_GET_SF_ISO(p) (((p)->faddr & PTD_SF_ISO_MSK) >> 8)
|
||
|
|
#define PTD_SF_ISO(v) (((v) << 8) & PTD_SF_ISO_MSK)
|
||
|
|
#define PTD_GET_PR(p) (((p)->faddr & PTD_PR_MSK) >> 13)
|
||
|
|
#define PTD_PR(v) (((v) << 13) & PTD_PR_MSK)
|
||
|
|
|
||
|
|
#define LOG2_PERIODIC_SIZE 5 /* arbitrary; this matches OHCI */
|
||
|
|
#define PERIODIC_SIZE (1 << LOG2_PERIODIC_SIZE)
|
||
|
|
|
||
|
|
struct isp1362_ep {
|
||
|
|
struct usb_host_endpoint *hep;
|
||
|
|
struct usb_device *udev;
|
||
|
|
|
||
|
|
/* philips transfer descriptor */
|
||
|
|
struct ptd ptd;
|
||
|
|
|
||
|
|
u8 maxpacket;
|
||
|
|
u8 epnum;
|
||
|
|
u8 nextpid;
|
||
|
|
u16 error_count;
|
||
|
|
u16 length; /* of current packet */
|
||
|
|
s16 ptd_offset; /* buffer offset in ISP1362 where
|
||
|
|
PTD has been stored
|
||
|
|
(for access thru HCDIRDATA) */
|
||
|
|
int ptd_index;
|
||
|
|
int num_ptds;
|
||
|
|
void *data; /* to databuf */
|
||
|
|
/* queue of active EPs (the ones transmitted to the chip) */
|
||
|
|
struct list_head active;
|
||
|
|
|
||
|
|
/* periodic schedule */
|
||
|
|
u8 branch;
|
||
|
|
u16 interval;
|
||
|
|
u16 load;
|
||
|
|
u16 last_iso;
|
||
|
|
|
||
|
|
/* async schedule */
|
||
|
|
struct list_head schedule; /* list of all EPs that need processing */
|
||
|
|
struct list_head remove_list;
|
||
|
|
int num_req;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct isp1362_ep_queue {
|
||
|
|
struct list_head active; /* list of PTDs currently processed by HC */
|
||
|
|
atomic_t finishing;
|
||
|
|
unsigned long buf_map;
|
||
|
|
unsigned long skip_map;
|
||
|
|
int free_ptd;
|
||
|
|
u16 buf_start;
|
||
|
|
u16 buf_size;
|
||
|
|
u16 blk_size; /* PTD buffer block size for ATL and INTL */
|
||
|
|
u8 buf_count;
|
||
|
|
u8 buf_avail;
|
||
|
|
char name[16];
|
||
|
|
|
||
|
|
/* for statistical tracking */
|
||
|
|
u8 stat_maxptds; /* Max # of ptds seen simultaneously in fifo */
|
||
|
|
u8 ptd_count; /* number of ptds submitted to this queue */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct isp1362_hcd {
|
||
|
|
spinlock_t lock;
|
||
|
|
void __iomem *addr_reg;
|
||
|
|
void __iomem *data_reg;
|
||
|
|
|
||
|
|
struct isp1362_platform_data *board;
|
||
|
|
|
||
|
|
struct dentry *debug_file;
|
||
|
|
unsigned long stat1, stat2, stat4, stat8, stat16;
|
||
|
|
|
||
|
|
/* HC registers */
|
||
|
|
u32 intenb; /* "OHCI" interrupts */
|
||
|
|
u16 irqenb; /* uP interrupts */
|
||
|
|
|
||
|
|
/* Root hub registers */
|
||
|
|
u32 rhdesca;
|
||
|
|
u32 rhdescb;
|
||
|
|
u32 rhstatus;
|
||
|
|
u32 rhport[MAX_ROOT_PORTS];
|
||
|
|
unsigned long next_statechange;
|
||
|
|
|
||
|
|
/* HC control reg shadow copy */
|
||
|
|
u32 hc_control;
|
||
|
|
|
||
|
|
/* async schedule: control, bulk */
|
||
|
|
struct list_head async;
|
||
|
|
|
||
|
|
/* periodic schedule: int */
|
||
|
|
u16 load[PERIODIC_SIZE];
|
||
|
|
struct list_head periodic;
|
||
|
|
u16 fmindex;
|
||
|
|
|
||
|
|
/* periodic schedule: isochronous */
|
||
|
|
struct list_head isoc;
|
||
|
|
unsigned int istl_flip:1;
|
||
|
|
unsigned int irq_active:1;
|
||
|
|
|
||
|
|
/* Schedules for the current frame */
|
||
|
|
struct isp1362_ep_queue atl_queue;
|
||
|
|
struct isp1362_ep_queue intl_queue;
|
||
|
|
struct isp1362_ep_queue istl_queue[2];
|
||
|
|
|
||
|
|
/* list of PTDs retrieved from HC */
|
||
|
|
struct list_head remove_list;
|
||
|
|
enum {
|
||
|
|
ISP1362_INT_SOF,
|
||
|
|
ISP1362_INT_ISTL0,
|
||
|
|
ISP1362_INT_ISTL1,
|
||
|
|
ISP1362_INT_EOT,
|
||
|
|
ISP1362_INT_OPR,
|
||
|
|
ISP1362_INT_SUSP,
|
||
|
|
ISP1362_INT_CLKRDY,
|
||
|
|
ISP1362_INT_INTL,
|
||
|
|
ISP1362_INT_ATL,
|
||
|
|
ISP1362_INT_OTG,
|
||
|
|
NUM_ISP1362_IRQS
|
||
|
|
} IRQ_NAMES;
|
||
|
|
unsigned int irq_stat[NUM_ISP1362_IRQS];
|
||
|
|
int req_serial;
|
||
|
|
};
|
||
|
|
|
||
|
|
static inline const char *ISP1362_INT_NAME(int n)
|
||
|
|
{
|
||
|
|
switch (n) {
|
||
|
|
case ISP1362_INT_SOF: return "SOF";
|
||
|
|
case ISP1362_INT_ISTL0: return "ISTL0";
|
||
|
|
case ISP1362_INT_ISTL1: return "ISTL1";
|
||
|
|
case ISP1362_INT_EOT: return "EOT";
|
||
|
|
case ISP1362_INT_OPR: return "OPR";
|
||
|
|
case ISP1362_INT_SUSP: return "SUSP";
|
||
|
|
case ISP1362_INT_CLKRDY: return "CLKRDY";
|
||
|
|
case ISP1362_INT_INTL: return "INTL";
|
||
|
|
case ISP1362_INT_ATL: return "ATL";
|
||
|
|
case ISP1362_INT_OTG: return "OTG";
|
||
|
|
default: return "unknown";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void ALIGNSTAT(struct isp1362_hcd *isp1362_hcd, void *ptr)
|
||
|
|
{
|
||
|
|
unsigned long p = (unsigned long)ptr;
|
||
|
|
if (!(p & 0xf))
|
||
|
|
isp1362_hcd->stat16++;
|
||
|
|
else if (!(p & 0x7))
|
||
|
|
isp1362_hcd->stat8++;
|
||
|
|
else if (!(p & 0x3))
|
||
|
|
isp1362_hcd->stat4++;
|
||
|
|
else if (!(p & 0x1))
|
||
|
|
isp1362_hcd->stat2++;
|
||
|
|
else
|
||
|
|
isp1362_hcd->stat1++;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline struct isp1362_hcd *hcd_to_isp1362_hcd(struct usb_hcd *hcd)
|
||
|
|
{
|
||
|
|
return (struct isp1362_hcd *) (hcd->hcd_priv);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline struct usb_hcd *isp1362_hcd_to_hcd(struct isp1362_hcd *isp1362_hcd)
|
||
|
|
{
|
||
|
|
return container_of((void *)isp1362_hcd, struct usb_hcd, hcd_priv);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define frame_before(f1, f2) ((s16)((u16)f1 - (u16)f2) < 0)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ISP1362 HW Interface
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define DBG(level, fmt...) \
|
||
|
|
do { \
|
||
|
|
if (dbg_level > level) \
|
||
|
|
pr_debug(fmt); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#ifdef VERBOSE
|
||
|
|
# define VDBG(fmt...) DBG(3, fmt)
|
||
|
|
#else
|
||
|
|
# define VDBG(fmt...) do {} while (0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef REGISTERS
|
||
|
|
# define RDBG(fmt...) DBG(1, fmt)
|
||
|
|
#else
|
||
|
|
# define RDBG(fmt...) do {} while (0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef URB_TRACE
|
||
|
|
#define URB_DBG(fmt...) DBG(0, fmt)
|
||
|
|
#else
|
||
|
|
#define URB_DBG(fmt...) do {} while (0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#if USE_PLATFORM_DELAY
|
||
|
|
#if USE_NDELAY
|
||
|
|
#error USE_PLATFORM_DELAY and USE_NDELAY defined simultaneously.
|
||
|
|
#endif
|
||
|
|
#define isp1362_delay(h, d) (h)->board->delay(isp1362_hcd_to_hcd(h)->self.controller, d)
|
||
|
|
#elif USE_NDELAY
|
||
|
|
#define isp1362_delay(h, d) ndelay(d)
|
||
|
|
#else
|
||
|
|
#define isp1362_delay(h, d) do {} while (0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define get_urb(ep) ({ \
|
||
|
|
BUG_ON(list_empty(&ep->hep->urb_list)); \
|
||
|
|
container_of(ep->hep->urb_list.next, struct urb, urb_list); \
|
||
|
|
})
|
||
|
|
|
||
|
|
/* basic access functions for ISP1362 chip registers */
|
||
|
|
/* NOTE: The contents of the address pointer register cannot be read back! The driver must ensure,
|
||
|
|
* that all register accesses are performed with interrupts disabled, since the interrupt
|
||
|
|
* handler has no way of restoring the previous state.
|
||
|
|
*/
|
||
|
|
static void isp1362_write_addr(struct isp1362_hcd *isp1362_hcd, isp1362_reg_t reg)
|
||
|
|
{
|
||
|
|
REG_ACCESS_TEST(reg);
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
writew(ISP1362_REG_NO(reg), isp1362_hcd->addr_reg);
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
isp1362_delay(isp1362_hcd, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void isp1362_write_data16(struct isp1362_hcd *isp1362_hcd, u16 val)
|
||
|
|
{
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
writew(val, isp1362_hcd->data_reg);
|
||
|
|
}
|
||
|
|
|
||
|
|
static u16 isp1362_read_data16(struct isp1362_hcd *isp1362_hcd)
|
||
|
|
{
|
||
|
|
u16 val;
|
||
|
|
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
val = readw(isp1362_hcd->data_reg);
|
||
|
|
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void isp1362_write_data32(struct isp1362_hcd *isp1362_hcd, u32 val)
|
||
|
|
{
|
||
|
|
#if USE_32BIT
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
writel(val, isp1362_hcd->data_reg);
|
||
|
|
#else
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
writew((u16)val, isp1362_hcd->data_reg);
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
writew(val >> 16, isp1362_hcd->data_reg);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
static u32 isp1362_read_data32(struct isp1362_hcd *isp1362_hcd)
|
||
|
|
{
|
||
|
|
u32 val;
|
||
|
|
|
||
|
|
#if USE_32BIT
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
val = readl(isp1362_hcd->data_reg);
|
||
|
|
#else
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
val = (u32)readw(isp1362_hcd->data_reg);
|
||
|
|
DUMMY_DELAY_ACCESS;
|
||
|
|
val |= (u32)readw(isp1362_hcd->data_reg) << 16;
|
||
|
|
#endif
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* use readsw/writesw to access the fifo whenever possible */
|
||
|
|
/* assume HCDIRDATA or XFERCTR & addr_reg have been set up */
|
||
|
|
static void isp1362_read_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 len)
|
||
|
|
{
|
||
|
|
u8 *dp = buf;
|
||
|
|
u16 data;
|
||
|
|
|
||
|
|
if (!len)
|
||
|
|
return;
|
||
|
|
|
||
|
|
RDBG("%s: Reading %d byte from fifo to mem @ %p\n", __func__, len, buf);
|
||
|
|
#if USE_32BIT
|
||
|
|
if (len >= 4) {
|
||
|
|
RDBG("%s: Using readsl for %d dwords\n", __func__, len >> 2);
|
||
|
|
readsl(isp1362_hcd->data_reg, dp, len >> 2);
|
||
|
|
dp += len & ~3;
|
||
|
|
len &= 3;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
if (len >= 2) {
|
||
|
|
RDBG("%s: Using readsw for %d words\n", __func__, len >> 1);
|
||
|
|
insw((unsigned long)isp1362_hcd->data_reg, dp, len >> 1);
|
||
|
|
dp += len & ~1;
|
||
|
|
len &= 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
BUG_ON(len & ~1);
|
||
|
|
if (len > 0) {
|
||
|
|
data = isp1362_read_data16(isp1362_hcd);
|
||
|
|
RDBG("%s: Reading trailing byte %02x to mem @ %08x\n", __func__,
|
||
|
|
(u8)data, (u32)dp);
|
||
|
|
*dp = (u8)data;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 len)
|
||
|
|
{
|
||
|
|
u8 *dp = buf;
|
||
|
|
u16 data;
|
||
|
|
|
||
|
|
if (!len)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if ((unsigned long)dp & 0x1) {
|
||
|
|
/* not aligned */
|
||
|
|
for (; len > 1; len -= 2) {
|
||
|
|
data = *dp++;
|
||
|
|
data |= *dp++ << 8;
|
||
|
|
isp1362_write_data16(isp1362_hcd, data);
|
||
|
|
}
|
||
|
|
if (len)
|
||
|
|
isp1362_write_data16(isp1362_hcd, *dp);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
RDBG("%s: Writing %d byte to fifo from memory @%p\n", __func__, len, buf);
|
||
|
|
#if USE_32BIT
|
||
|
|
if (len >= 4) {
|
||
|
|
RDBG("%s: Using writesl for %d dwords\n", __func__, len >> 2);
|
||
|
|
writesl(isp1362_hcd->data_reg, dp, len >> 2);
|
||
|
|
dp += len & ~3;
|
||
|
|
len &= 3;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
if (len >= 2) {
|
||
|
|
RDBG("%s: Using writesw for %d words\n", __func__, len >> 1);
|
||
|
|
outsw((unsigned long)isp1362_hcd->data_reg, dp, len >> 1);
|
||
|
|
dp += len & ~1;
|
||
|
|
len &= 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
BUG_ON(len & ~1);
|
||
|
|
if (len > 0) {
|
||
|
|
/* finally write any trailing byte; we don't need to care
|
||
|
|
* about the high byte of the last word written
|
||
|
|
*/
|
||
|
|
data = (u16)*dp;
|
||
|
|
RDBG("%s: Sending trailing byte %02x from mem @ %08x\n", __func__,
|
||
|
|
data, (u32)dp);
|
||
|
|
isp1362_write_data16(isp1362_hcd, data);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#define isp1362_read_reg16(d, r) ({ \
|
||
|
|
u16 __v; \
|
||
|
|
REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_16); \
|
||
|
|
isp1362_write_addr(d, ISP1362_REG_##r); \
|
||
|
|
__v = isp1362_read_data16(d); \
|
||
|
|
RDBG("%s: Read %04x from %s[%02x]\n", __func__, __v, #r, \
|
||
|
|
ISP1362_REG_NO(ISP1362_REG_##r)); \
|
||
|
|
__v; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define isp1362_read_reg32(d, r) ({ \
|
||
|
|
u32 __v; \
|
||
|
|
REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_32); \
|
||
|
|
isp1362_write_addr(d, ISP1362_REG_##r); \
|
||
|
|
__v = isp1362_read_data32(d); \
|
||
|
|
RDBG("%s: Read %08x from %s[%02x]\n", __func__, __v, #r, \
|
||
|
|
ISP1362_REG_NO(ISP1362_REG_##r)); \
|
||
|
|
__v; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define isp1362_write_reg16(d, r, v) { \
|
||
|
|
REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_16); \
|
||
|
|
isp1362_write_addr(d, (ISP1362_REG_##r) | ISP1362_REG_WRITE_OFFSET); \
|
||
|
|
isp1362_write_data16(d, (u16)(v)); \
|
||
|
|
RDBG("%s: Wrote %04x to %s[%02x]\n", __func__, (u16)(v), #r, \
|
||
|
|
ISP1362_REG_NO(ISP1362_REG_##r)); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define isp1362_write_reg32(d, r, v) { \
|
||
|
|
REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_32); \
|
||
|
|
isp1362_write_addr(d, (ISP1362_REG_##r) | ISP1362_REG_WRITE_OFFSET); \
|
||
|
|
isp1362_write_data32(d, (u32)(v)); \
|
||
|
|
RDBG("%s: Wrote %08x to %s[%02x]\n", __func__, (u32)(v), #r, \
|
||
|
|
ISP1362_REG_NO(ISP1362_REG_##r)); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define isp1362_set_mask16(d, r, m) { \
|
||
|
|
u16 __v; \
|
||
|
|
__v = isp1362_read_reg16(d, r); \
|
||
|
|
if ((__v | m) != __v) \
|
||
|
|
isp1362_write_reg16(d, r, __v | m); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define isp1362_clr_mask16(d, r, m) { \
|
||
|
|
u16 __v; \
|
||
|
|
__v = isp1362_read_reg16(d, r); \
|
||
|
|
if ((__v & ~m) != __v) \
|
||
|
|
isp1362_write_reg16(d, r, __v & ~m); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define isp1362_set_mask32(d, r, m) { \
|
||
|
|
u32 __v; \
|
||
|
|
__v = isp1362_read_reg32(d, r); \
|
||
|
|
if ((__v | m) != __v) \
|
||
|
|
isp1362_write_reg32(d, r, __v | m); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define isp1362_clr_mask32(d, r, m) { \
|
||
|
|
u32 __v; \
|
||
|
|
__v = isp1362_read_reg32(d, r); \
|
||
|
|
if ((__v & ~m) != __v) \
|
||
|
|
isp1362_write_reg32(d, r, __v & ~m); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define isp1362_show_reg(d, r) { \
|
||
|
|
if ((ISP1362_REG_##r & REG_WIDTH_MASK) == REG_WIDTH_32) \
|
||
|
|
DBG(0, "%-12s[%02x]: %08x\n", #r, \
|
||
|
|
ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg32(d, r)); \
|
||
|
|
else \
|
||
|
|
DBG(0, "%-12s[%02x]: %04x\n", #r, \
|
||
|
|
ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg16(d, r)); \
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __attribute__((__unused__)) isp1362_show_regs(struct isp1362_hcd *isp1362_hcd)
|
||
|
|
{
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCREVISION);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCCONTROL);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCCMDSTAT);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCINTSTAT);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCINTENB);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCFMINTVL);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCFMREM);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCFMNUM);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCLSTHRESH);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCRHDESCA);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCRHDESCB);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCRHSTATUS);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCRHPORT1);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCRHPORT2);
|
||
|
|
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCHWCFG);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCDMACFG);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCXFERCTR);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCuPINT);
|
||
|
|
|
||
|
|
if (in_interrupt())
|
||
|
|
DBG(0, "%-12s[%02x]: %04x\n", "HCuPINTENB",
|
||
|
|
ISP1362_REG_NO(ISP1362_REG_HCuPINTENB), isp1362_hcd->irqenb);
|
||
|
|
else
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCuPINTENB);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCCHIPID);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCSCRATCH);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCBUFSTAT);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCDIRADDR);
|
||
|
|
/* Access would advance fifo
|
||
|
|
* isp1362_show_reg(isp1362_hcd, HCDIRDATA);
|
||
|
|
*/
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCISTLBUFSZ);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCISTLRATE);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCINTLBUFSZ);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCINTLBLKSZ);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCINTLDONE);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCINTLSKIP);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCINTLLAST);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCINTLCURR);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCATLBUFSZ);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCATLBLKSZ);
|
||
|
|
/* only valid after ATL_DONE interrupt
|
||
|
|
* isp1362_show_reg(isp1362_hcd, HCATLDONE);
|
||
|
|
*/
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCATLSKIP);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCATLLAST);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCATLCURR);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCATLDTC);
|
||
|
|
isp1362_show_reg(isp1362_hcd, HCATLDTCTO);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void isp1362_write_diraddr(struct isp1362_hcd *isp1362_hcd, u16 offset, u16 len)
|
||
|
|
{
|
||
|
|
len = (len + 1) & ~1;
|
||
|
|
|
||
|
|
isp1362_clr_mask16(isp1362_hcd, HCDMACFG, HCDMACFG_CTR_ENABLE);
|
||
|
|
isp1362_write_reg32(isp1362_hcd, HCDIRADDR,
|
||
|
|
HCDIRADDR_ADDR(offset) | HCDIRADDR_COUNT(len));
|
||
|
|
}
|
||
|
|
|
||
|
|
static void isp1362_read_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len)
|
||
|
|
{
|
||
|
|
isp1362_write_diraddr(isp1362_hcd, offset, len);
|
||
|
|
|
||
|
|
DBG(3, "%s: Reading %d byte from buffer @%04x to memory @ %p\n",
|
||
|
|
__func__, len, offset, buf);
|
||
|
|
|
||
|
|
isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
|
||
|
|
|
||
|
|
isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA);
|
||
|
|
|
||
|
|
isp1362_read_fifo(isp1362_hcd, buf, len);
|
||
|
|
isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void isp1362_write_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len)
|
||
|
|
{
|
||
|
|
isp1362_write_diraddr(isp1362_hcd, offset, len);
|
||
|
|
|
||
|
|
DBG(3, "%s: Writing %d byte to buffer @%04x from memory @ %p\n",
|
||
|
|
__func__, len, offset, buf);
|
||
|
|
|
||
|
|
isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
|
||
|
|
|
||
|
|
isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA | ISP1362_REG_WRITE_OFFSET);
|
||
|
|
isp1362_write_fifo(isp1362_hcd, buf, len);
|
||
|
|
|
||
|
|
isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __attribute__((unused)) dump_data(char *buf, int len)
|
||
|
|
{
|
||
|
|
if (dbg_level > 0) {
|
||
|
|
int k;
|
||
|
|
int lf = 0;
|
||
|
|
|
||
|
|
for (k = 0; k < len; ++k) {
|
||
|
|
if (!lf)
|
||
|
|
DBG(0, "%04x:", k);
|
||
|
|
printk(" %02x", ((u8 *) buf)[k]);
|
||
|
|
lf = 1;
|
||
|
|
if (!k)
|
||
|
|
continue;
|
||
|
|
if (k % 16 == 15) {
|
||
|
|
printk("\n");
|
||
|
|
lf = 0;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (k % 8 == 7)
|
||
|
|
printk(" ");
|
||
|
|
if (k % 4 == 3)
|
||
|
|
printk(" ");
|
||
|
|
}
|
||
|
|
if (lf)
|
||
|
|
printk("\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(PTD_TRACE)
|
||
|
|
|
||
|
|
static void dump_ptd(struct ptd *ptd)
|
||
|
|
{
|
||
|
|
DBG(0, "EP %p: CC=%x EP=%d DIR=%x CNT=%d LEN=%d MPS=%d TGL=%x ACT=%x FA=%d SPD=%x SF=%x PR=%x LST=%x\n",
|
||
|
|
container_of(ptd, struct isp1362_ep, ptd),
|
||
|
|
PTD_GET_CC(ptd), PTD_GET_EP(ptd), PTD_GET_DIR(ptd),
|
||
|
|
PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd),
|
||
|
|
PTD_GET_TOGGLE(ptd), PTD_GET_ACTIVE(ptd), PTD_GET_FA(ptd),
|
||
|
|
PTD_GET_SPD(ptd), PTD_GET_SF_INT(ptd), PTD_GET_PR(ptd), PTD_GET_LAST(ptd));
|
||
|
|
DBG(0, " %04x %04x %04x %04x\n", ptd->count, ptd->mps, ptd->len, ptd->faddr);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void dump_ptd_out_data(struct ptd *ptd, u8 *buf)
|
||
|
|
{
|
||
|
|
if (dbg_level > 0) {
|
||
|
|
if (PTD_GET_DIR(ptd) != PTD_DIR_IN && PTD_GET_LEN(ptd)) {
|
||
|
|
DBG(0, "--out->\n");
|
||
|
|
dump_data(buf, PTD_GET_LEN(ptd));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void dump_ptd_in_data(struct ptd *ptd, u8 *buf)
|
||
|
|
{
|
||
|
|
if (dbg_level > 0) {
|
||
|
|
if (PTD_GET_DIR(ptd) == PTD_DIR_IN && PTD_GET_COUNT(ptd)) {
|
||
|
|
DBG(0, "<--in--\n");
|
||
|
|
dump_data(buf, PTD_GET_COUNT(ptd));
|
||
|
|
}
|
||
|
|
DBG(0, "-----\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void dump_ptd_queue(struct isp1362_ep_queue *epq)
|
||
|
|
{
|
||
|
|
struct isp1362_ep *ep;
|
||
|
|
int dbg = dbg_level;
|
||
|
|
|
||
|
|
dbg_level = 1;
|
||
|
|
list_for_each_entry(ep, &epq->active, active) {
|
||
|
|
dump_ptd(&ep->ptd);
|
||
|
|
dump_data(ep->data, ep->length);
|
||
|
|
}
|
||
|
|
dbg_level = dbg;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
#define dump_ptd(ptd) do {} while (0)
|
||
|
|
#define dump_ptd_in_data(ptd, buf) do {} while (0)
|
||
|
|
#define dump_ptd_out_data(ptd, buf) do {} while (0)
|
||
|
|
#define dump_ptd_data(ptd, buf) do {} while (0)
|
||
|
|
#define dump_ptd_queue(epq) do {} while (0)
|
||
|
|
#endif
|